MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
Use coal gangue to make microcrystalline stone
Enhancement of coal gangue performance by surface micro
2023年2月1日 Surface microcrystalline glaze effectively reduced crushing rate and water absorption of coal gangue Kfeldspar + blast furnace slag had the best modification effect because iron oxides were formed and sealed in the glaze2022年11月1日 Underlying mechanisms were that during calcination, mineral powders generated microcrystalline glaze on gangue surface, which improved the pore size distribution Enhancement of coal gangue performance by surface micro Using coal gangue as a substitute for natural aggregate is an effective recycling approach, however, the high water absorption and high crushing rate of coal gangue seriously weaken its Enhancement of coal gangue performance by surface micro 2023年2月1日 Surface microcrystalline glaze effectively reduced crushing rate and water absorption of coal gangue Kfeldspar + blast furnace slag had the best modification effect Enhancement of coal gangue performance by surface micro
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Opportunities, challenges and modification methods of coal
2024年9月7日 The addition of porous modified coal gangue can improve soil structure, which is conducive to nutrient absorption and respiration of plant roots, and significantly boost the 2021年9月27日 Multitechniques have been used to analyze the influence of coal gangue properties on concrete performance Prediction models for the performance difference Multitechnique investigation of concrete with coal gangue2022年4月6日 Among coal miningrelated wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase of coal mining A The Sustainable Utilization of Coal Gangue in Geotechnical and 2023年8月14日 In order to deeply study the basic characteristics, diffusion laws, and flow laws of coal gangue and coal gangue slurry, the basic characteristic parameters of coal gangue and Diffusion law of coal gangue slurry and the application of fluidized
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Glassceramics fabricated by efficiently utilizing coal gangue
2020年3月17日 Using coal gangue of 75% and coal gangue to clay ratio of 3/1 made the mechanical properties optimal The sintering temperature of 1370 °C was found to be optimal 2024年2月28日 Fill mining, as a green mining technology, utilises coal gangue underground for filling in order to reduce problems such as difficulty in accumulating coal gangue on the Study on the macro–micro evolution of compaction characteristics The apparent density of gangue is approximately 2600 kg/m 3 , which is similar to natural stone, After physical activation, coal gangue is used in geopolymer preparation with a chemical Physical properties of coal gangue aggregate from different 2024年4月6日 To make a comprehensive use of coal gangue, it is proposed to use this solid waste instead of fine aggregate to prepare gangue concrete pile for pilenet composite foundation The influences from substitution ratio of fine coal gangue aggregate upon the mechanical parameters of concrete were analyzed through laboratory test, and the labscale model test Experimental research on bearing characteristics of coal gangue
Utilization of coal gangue for the production of brick
2016年6月8日 As for 1150 °C (Figure 12c,d), the mineral powder was sufficiently fused and bonded together to form a As sintering temperatures increase from 1000 • C to 1200 • C, the porosity of thermal 2023年6月7日 How to effectively utilize coal gangue is one of the important research directions of coal gangue treatment methods [17, 18] Li et al used coal gangue and fly ash to prepare underground backfill material, which realized the comprehensive utilization of mine solid waste resources and solved the environmental problems caused by solid waste [19]Experimental Study on Ratio and Performance of Coal GangueTo make better use of coal gangue in concrete, it is Composition Water Cement Sand Stone Content (kg/m3) 220 36667 72533 108799 TABLE 4 Experimental factors and levelsStudy on mechanical properties and microstructure of2023年2月1日 1 Introduction Coal gangue is a byproduct of coal mining and washing process (Li et al, 2006)In China, there are 5 billion tons of coal gangue accumulated as residual waste, and this value continues to grow at the rate of 300–350 tons per year (Li and Wang, 2019; Moghadam et al, 2019)Large amount of coal gangue not only occupies farmland, but also Enhancement of coal gangue performance by surface microcrystalline
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FreezingThawingDamageMechanismofCoalGangueConcrete
Coal gangue mainly comes from the “three northern regions,” namely,northChina,northeastChina,andnorthwestChina [5], which are located in the severe cold area In order to make effective use 2023年5月25日 Coal gangue can be used to make silicon fertilizer, which is beneficial to plant growth and can increase the amount of phytolith (a stable carbon form); actively developing the growth of ganguebased silicon fertilizers and applying it to soil has a very important carbon sink effect [71, 72] 2Lowcarbon utilization of coal gangue under the carbon 2019年5月8日 Firstly, we use a generative adversarial network (DCGAN) to generate new coal gangue samples and expand the gangue dataset by traditional image enhancement techniques to increase the data samples Image Recognition of Coal and Coal Gangue Using a 2024年4月1日 Thermal activation is considered to be the most effective method to improve the reactivity of CG (Cao et al, 2016)Luo et alused sewage sludge and shale as binders, mixed with an appropriate amount of CG powder, adjusted the appropriate proportion to make the strength and water absorption of CG bricks meet the standard requirements (Luo et al, 2020)Safe and environmentally friendly use of coal gangue in C30
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(PDF) Power Generation from Coal Gangue in China
2012年7月2日 This paper provides an overview on the current status of power generation in China using coal gangue The government regulation towards the use of coal gangue for power generation is introduced2023年4月6日 An emerging "one stone, three birds" strategy was proposed to realize the valueadded disposal of solid waste coal gangue (CG), the synthesis of superb adsorbent and the efficient decontamination Reconstruction of Metal Ions Extracted from Coal Gangue to 2018年1月1日 The product distributions obtained from pyrolysis of coal gangue and corncob at different temperatures were shown in Table 2From Table 2 one could see that for coal gangue pyrolysis, there was almost no oil when the temperature was lower than 500 °C, and at 500 °C the oil yield was 52%; while corncob began to crack at 200 °C, and the liquid oil yield of corncob Pyrolysis behavior of corncob and coal gangue with modified 2023年5月24日 This paper proposes a modified YOLOv4 model, named GYOLO, for coal gangue recognition with the aim of reducing model parameters, improving calculation speed, and reducing equipment requirements To achieve this, the paper optimizes the feature extraction network structure by using linear operation instead of traditional convolution to obtain A fast recognition method for coal gangue image processing
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Coal Gangue Applied to LowVolume Roads in China
2011年12月1日 Coal gangue is a solid waste produced from the production, washing, and selection of coal processes Coal gangue is a mixture of minerals containing carbonaceous shale, sandstone, shale, and 2023年11月3日 The influence of fiber and coal gangue on the microstructure was studied by scanning electron Composition Water Cement Sand Stone Content (kg/m 3) 220 36667 72533 108799 TABLE 4 Study on mechanical properties and microstructure of steel 2019年3月29日 ABSTRACT The separation of coal and gangue is an important aspect of coal production, which can improve coal quality, save energy, reduce consumption, and enable the rational use of resources At present, manual selection remains widely implemented, but the working environment is harsh, labour intensity is high, and efficiency is low With the continual Separation of gangue from coal based on supplementary texture 2021年11月11日 Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productions(PDF) Application of Coal Gangue as a Coarse Aggregate in Green
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Coal and Gangue Separating Robot System Based on
2021年2月14日 Image and digital coal gangue identification technology has been increasingly researched and applied in the field of coal gangue sorting and in automated coal caving (Zhang et al 2021a, b; Sun et Download scientific diagram Morphology of the coal gangue ceramsite used in this study from publication: Shrinkage and Strength Properties of Coal Gangue Ceramsite Lightweight Aggregate Morphology of the coal gangue ceramsite used in this study2024年4月15日 Coal gangue is a byproduct of coal mining and processing, and according to incomplete statistics, China has amassed a substantial coal gangue stockpile exceeding 2600 large mountains, which poses a serious threat to the Enhancing Fatigue Performance of Coal Gangue 2021年7月28日 Coal gangue, as a type of solid waste discharged during coal mining and coal washing, occupies a large amount of land resources owing to accumulated gangue, which eventually results in ecological Influence of coal gangue mulching with various thicknesses and
(PDF) Shrinkage and Strength Properties of Coal Gangue
2020年5月15日 It is a promising and effective method for waste treatment by using coal gangue to make lightweight aggregate concrete However, lightweight aggregate concrete with lowdensity coal gangue The high working quality mini stone crusher at reasonable price will be widely used in coal gangue processing line Coal Gangue Mini Stone Crusher Features: This coal gangue mini stone crusher has the function of plastic, perfect end product shape and large packing density In the production process, the coal gangue can protect the underlying High Quality Mini Stone Crusher Process Coal Gangue at 2020年6月26日 Coal mining is indispensable due to the widespread use of coal, and gangue is the accumulated solid waste byproduct that persists in mined lands, even after the mines have been abandoned 1In the Excess sulfur and Fe elements drive changes in soil and Nature2021年11月30日 In order to solve the environmental pollution of coal gangue and the shortage of aggregate resources in road engineering, waste coal gangue is used as road base material instead of natural stone Road performance analysis of cement stabilized coal gangue mixture
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Characteristics of Coal Gangue and Present Situation and
2024年6月4日 The coal industry is an important pillar industry of economic development in China, with coal mining produced a lot of coal gangue, which is occupied land, and pollution of the environment, and the production and life of coalproducing areas have been seriously affected, coal gangue has become a heavy burden restricting the sustainable development of coal 2024年9月1日 As a byproduct of coal production, coal gangue, if not handled properly, will pose an important hidden danger to the environment and safety Using underground intelligent coal gangue sorting technology can increase efficiency, protect the environment, and enhance safety, which is essential for achieving efficient and ecofriendly coal productionResearch and prospect of underground intelligent coal gangue 2022年11月25日 China’s total coal production in 2021 exceeded 413 billion tons, 52% of the world’s total Coal gangue, a solid waste of coal mining accounts for 15–20% of coal production, when directly discharged on the ground surface as waste heaps, it occupies large areas of land and cause environmental pollution This paper summarizes the existing gangue backfilling Underground Disposal of Coal Gangue Backfill in China MDPI2023年11月11日 Coal gangue image recognition is a critical technology for achieving automatic separation in coal processing, characterized by its rapid, environmentally friendly, and energysaving nature However, the response characteristics of coal and gangue vary greatly under different illuminance conditions, which poses challenges to the stability of feature extraction Research on Recognition of Coal and Gangue Based on Laser
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Using Chinese Coal Gangue as an Ecological
2022年6月26日 The coal consumption yearonyear growth rate of the world since 2010 (data from International Energy Agency Statistics, 2020) 2022年4月6日 Lin, H, G Li, Y Dong, and J Li 2017 “Effect of pH on the release of heavy metals from stone coal waste rocks” Int J Miner Process 165: 1–7 S Hu, and K Wu 2016b “A concrete material with waste coal gangue and fly ash used for farmland drainage in high groundwater level areas” J Cleaner Prod 112: 631 The Sustainable Utilization of Coal Gangue in Geotechnical and 2021年11月8日 Coal gangue fine crushing and sand making machine: it can crush and make sand through the plate hammer impact of the rotor, which can be finely crushed and formed at one time, and the product Can coal gangue be used to make sand? LinkedIn2015年2月18日 The reuse of coal gangue for energy recovery is developing rapidly in China, due to its advantage in achieving both economic and environmental benefits Lowquality coal is often added to elevate the calorific value of the fuel In this paper, the combustion characteristics as well as pollutant emissions (SO2 and NO) of coal gangue, lowquality coal and their blends Cocombustion and emission characteristics of coal gangue and
Structural characteristics and lowtemperature oxidation
2024年6月17日 In order to effectively mitigate the oxidation reactions of coal (RC) and gangue (RG) at low temperatures, a comprehensive study was conducted on the mineral composition, structural characteristics, and oxidation behaviors of RC and RG from the same coal seam Additionally, the thermodynamic attributes of their oxidation processes were evaluated The 2024年2月23日 To address the issues of complex algorithm models, poor accuracy, and low realtime performance in the coal industry's coal gangue sorting, a lightweight realtime detection method called YOLOv8sGSC is proposed based on the characteristics of coal gangue This method incorporates the ghost module into the YOLOv8s backbone network to reduce the The realtime detection method for coal gangue based on2024年4月1日 Industrial solid waste coal gangue (CG) is used as the research object, and the mechanical activationwater washing pretreatment method was used to explore the feasibility of carbon removal by water washing and the improvement and microscopic mechanism of the treatment process on the cementitious activity of CG The mechanism and effect of Safe and environmentally friendly use of coal gangue in C30 Download Citation On Apr 1, 2024, Chaoqiang Wang and others published Safe and environmentally friendly use of coal gangue in C30 concrete Find, read and cite all the research you need on Safe and environmentally friendly use of coal gangue in C30
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(PDF) FreezingThawing Damage Mechanism of Coal Gangue
2021年2月4日 To study waterborne frost heaving failure mechanism of coal gangue ceramsite concrete (CGCC) under freezethaw cycles, capillary water absorption test, nonmetallic ultrasonic testing test, low 2024年7月12日 Coal gangue (CG), which accounts for about 10–20 % of coal output, is a kind of solid waste generated during the coal mining and washing processes According to Fig 2 , the annual output of CG in China fluctuates between 600–800 million tons, with a utilization rate hovering around 70 %Review Highcapacity utilization of coal gangue as supplementary